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HCMT traction Flashcards

1
Q

What is the car Consist of a HCMT unit?

A

TC-DMP-MP1-DT-MP2-DMP-TC

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2
Q

What control functions does the Train Management system have?

A

Train information system
Train Data recorder
Smoke Detention system
Electronic Access System
High capacity signalling

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3
Q

What are the Isolating cocks under the Coupler Cover?

A

Uncouple Device
Towing unit
Brake Pipe End cock
Main Reservoir End cock
Horn Isolating cock

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4
Q

Brake control module consists of?

A

Brake supply
Brake cylinder End 2
Brake Cylinder End 1
Tread scrubber (tc) / Park Brake
Sanders

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5
Q

What Reservoirs are there?

A

Main reservoirs
Surge Reservoirs ( 2 per bogie)
Brake supply Reservoirs

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6
Q

What is the Brake Supply Reservoirs purpose ?

A

Supplies compressed air to the EP valves to charge the brake cylinder

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7
Q

What is the Primary suspension ?

A

Rubber Laminated springs mounted between the axle Box and Bogie frame

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8
Q

What is the Secondary Suspension?

A

Air Suspension Springs
2 Air Bags for shock absorption

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9
Q

How many Air Suspension Isolating cocks ?

A

2

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10
Q

What is in the Auxiliary Power supply container?

A

Auxiliary Inverter
Medium Voltage box
Battery Charger

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11
Q

What does the Air supply Unit consists of ?

A

Main Air Compressor
Air Dryers
Filters

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12
Q

What is in the High Voltage Box ?

A

High Speed C/B
Harmonic wave Detection Device

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13
Q

Auxiliary Power Supplies purpose ?

A

To convert 1500vDC TO 415 v 3 phase AC to the train and Battery charger

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14
Q

Variable Voltage and Variable frequency Cabinet contains?

A

Two traction Inverter modules (1 per bogie)

Traction Control Unit

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15
Q

What does the Brake Resistor Grid do?

A

Absorbs the energy generated by the traction motor during ED braking and dissipates the heat

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16
Q

What is the Pantograph isolating cocks main function?

A

To isolate the flow of main reservoir air to the Pantograph equipment

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17
Q

What does the Medium Voltage Box do?

A

It Maintains the train line voltage which is produced by the Auxiliary inverters

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18
Q

What door systems are on the HCMT?

A

Saloon Doors
Cab Doors
Internal Fire Door
Cab Bulkhead door
Emergency Ladder and Box

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19
Q

Where is the Portable Wheelchair Ramp Located ?

A

Near doors 1+2 at the Number one end of the DMP carriage

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20
Q

What are the saloon Lighting settings ?

A

Normal
Emergency

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21
Q

Where are the Saloon Fire extinguishers located?
How can they be identified?

A

In every MP2 car(higher number) on the right hand side of door #3

Identified with a red dot

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22
Q

What are the Saloon Area isolating cocks?

A

Brake Supply
Park Brake
Pantograph

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23
Q

What are the Master Controller Positions?

A

Emy (emergency)
Max Brake
Braking Zone
Minimum Brake
Coast
Minimum Power
Powering

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24
Q

What tiles are on the Fault Panel?

A

INT smoke ( internal smoke)
EXT Smoke (external smoke)
Safety system Bypass
Flat Airbag
Locked Axle
Emergency Brake
Trip Not set

25
The Safety System bypasses what?
Traction Interlock Zero speed Trip Drivers safety device HCS isolate
26
What are the Set Speed Positions?
Wash Off Yard
27
What are the Headlight switch positions?
Auto High
28
What is in the A side Electrical Cabinet?
Isolation/ override Controls Circuit Breakers Communication equipment Vigilance equipment
29
What makes up the electronic Access system?
A control Unit Badge reader Electric strikers
30
What runs off 415V AC?
Bath Chargers Air Compressors Traction equipment Cooling Systems HVAC cab/saloon
31
What runs off 240 vAC
General Power Outlets (GPO)
32
What Circuit Breakers fail the train?
Cab Activation Traction Control Emergency Brake Loop Power supply Brake control Supply
33
How do you reset the Safety Loop?
Stationary for more than 3 seconds Remove reason for the Emergency brake Master controller to max brake Reverser to Neutral
34
What is the Main Reservoir pressure ?
850-100 kpa
35
Emergency Brake cylinder Pressure?
280-460 kpa
36
Maximum Brake Cylinder pressure ?
250-380 kpa
37
Holding brake pressure ?
140-240 kpa
38
What is the Main Reservoir over-pressure safety valve pressure ?
1050 kpa
39
Main Reservoir safety Loop activation pressure?
600kpa
40
Pantograph Raise pressure?
Minimum of 700 kpa
41
Two ways you can reset the trip are ?
Trip reset Switch in the ojt Panel Pressing the trip reset plunger on the front of the trip
42
What speed restriction applies to the Post trip?
25km is when traction will be cut.
43
How long does the Post trip Speed Restriction last for ?
500 seconds ( 8 minutes and 20 seconds)
44
How long must you be moving before using the Trip Speed Button?
30 seconds
45
What does the High Voltage Box supply power to?
Traction System Auxiliary Power system
46
When is ED brake available?
When the train is above 3km
47
Where are the Tread scrubbers?
Located on Tc Cars Wheels 3+4
48
What is the Holding Brake Threshold limit?
0.5km
49
How many Saloon cameras per car?
4
50
When will the holding Brake not release ?
Safety loop is energised Brake demand is not registered Traction demand is above threshold of 0.5km
51
What does the BCU measure when Braking?
ED braking force present Braking Force Required Weight of the car
52
What Cameras are on the HCMT?
Forward Facing Camera Stopping Aid Saloon Drivers Desk Bodyside
53
What does ASDC stand for?
Automatic Selective Door Control
54
When will the Stopping Aid Camera display?
Approximately 10 meters from the stopping mark
55
What is the ASDC override procedure?
A- Announcement S-SDN , check the cameras D- Door, open cab door and check platform C-Cover, lift lid and hit button
56
What speed does the traction power get cut out in Yard mode ?
15km
57
What are the 2 certificates during preparations that need to be done/completed?
Train Certificate Validity Certificate
58
How long does the Train certificate take?
12 minutes is the expected duration
59
What is the function of the Brake Supple Reservoirs?
To supply compressed Air to the EP valves in the BCM for the brake cylinders

Class 235 (18 decks)

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